<template>
  <div class="login">
    <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form" autocomplete="on"
             label-position="left">
      <div class="title-container">
        <h3 class="title">RBAC用户登陆</h3>
      </div>
      <el-form-item prop="username">
        <el-input
          v-model="loginForm.username"
          type="text"
          ref="username"
          auto-complete="off"
          tabindex="1"
          placeholder="账号"
        >
          <svg-icon slot="prefix" icon-class="user" class="el-input__icon input-icon"/>
        </el-input>
      </el-form-item>

      <el-form-item prop="password">
        <el-input
          v-model="loginForm.password"
          :key="passwordType"
          :type="passwordType"
          tabindex="2"
          ref="password"
          auto-complete="off"
          placeholder="密码"
          @keyup.enter.native="handleLogin"
        >
          <svg-icon slot="prefix" icon-class="password" class="el-input__icon input-icon"/>
          <svg-icon slot="suffix" @click="showPwd" :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'"/>
        </el-input>
      </el-form-item>
      <el-form-item prop="captcha">
        <el-input
          v-model="loginForm.code"
          auto-complete="off"
          placeholder="验证码"
          style="width: 63%"
          @keyup.enter.native="handleLogin"
        >
          <svg-icon slot="prefix" icon-class="validCode" class="el-input__icon input-icon" />
        </el-input>
        <div class="login-code">
          <img :src="codeUrl" @click="getCaptcha" class="login-code-img"/>
        </div>
      </el-form-item>
      <el-button :loading="loading" type="primary" style="width:100%;margin-bottom:30px;"
                 @click.native.prevent="handleLogin">
        <span v-if="!loading">登 录</span>
        <span v-else>登 录 中...</span>
      </el-button>
    </el-form>
    <!--  底部  -->
    <div class="el-login-footer">
      <span>Copyright © 2022-2025 yinyibing.org.cn All Rights Reserved.</span>
    </div>
  </div>
</template>

<script>
import {getCaptcha} from "@/api/user";

export default {
  name: 'Login',
  data() {
    return {
      loginForm: {
        username: 'admin',
        password: '123456',
        code:undefined
      },
      loginRules: {
        username: [
          {required: true, trigger: "blur", message: "请输入您的账号"}
        ],
        password: [
          {required: true, trigger: "blur", message: "请输入您的密码"}
        ],
        code: [{required: true, trigger: "change", message: "请输入验证码"}]
      },
      passwordType: 'password',
      capsTooltip: false,
      loading: false,
      showDialog: false,
      redirect: undefined,
      //验证码地址
      codeUrl:undefined
    }
  },
  watch: {
    $route: {
      handler: function(route) {
        const query = route.query
        if (query) {
          this.redirect = query.redirect
        }
      },
      immediate: true
    }
  },
  created() {
    //得到验证码
    this.getCaptcha();
  },
  mounted() {
    if (this.loginForm.username === '') {
      this.$refs.username.focus()
    } else if (this.loginForm.password === '') {
      this.$refs.password.focus()
    }
  },
  destroyed() {
  },
  methods: {
    //得到验证码
    getCaptcha(){
      getCaptcha().then(res=>{
        this.codeUrl=res.data;
      })
    },
    showPwd() {
      if (this.passwordType === 'password') {
        this.passwordType = ''
      } else {
        this.passwordType = 'password'
      }
      this.$nextTick(() => {
        this.$refs.password.focus()
      })
    },
    handleLogin() {
      //触发验证
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true
          this.$store.dispatch('user/login', this.loginForm)
            .then(() => {
              //说明登录成功  跳到主页
              this.$router.push({path: this.redirect || '/'})
              this.loading = false
            })
            .catch(() => {
              this.loading = false
              //重新获取验证码
              this.getCaptcha();
            })
        }
      })
    }
  }
}
</script>

<style lang="scss">
.login {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  background-image: url("../../assets/images/login-background3.jpg");
  background-size: cover;
}

.title {
  margin: 0px auto 30px auto;
  text-align: center;
  color: #707070;
}

.login-form {
  border-radius: 6px;
  background: #ffffff;
  width: 400px;
  padding: 25px 25px 5px 25px;

  .el-input {
    height: 38px;

    input {
      height: 38px;
    }
  }

  .input-icon {
    height: 39px;
    width: 14px;
    margin-left: 2px;
  }
}

.login-tip {
  font-size: 13px;
  text-align: center;
  color: #bfbfbf;
}

.login-code {
  width: 33%;
  height: 38px;
  float: right;

  img {
    cursor: pointer;
    vertical-align: middle;
  }
}

.el-login-footer {
  height: 40px;
  line-height: 40px;
  position: fixed;
  bottom: 0;
  width: 100%;
  text-align: center;
  color: #fff;
  font-family: Arial;
  font-size: 12px;
  letter-spacing: 1px;
}

.login-code-img {
  height: 38px;
}
</style>
